Question

Can someone check my answers in case I got any wrong?

Answer 1

I think it is the third one

Answer 2

it is not the third one

Answer 3

how did you get that answer?

Answer 4

I thought the way my teacher "explained" it to me, it was.

Answer 5

so.... how did the explanation give -8 then?

Answer 6

just look at ehich function satisfies the conditions for x

Answer 7

heres the thing, for f(-2), x=-2. Since -2 is contained in the set -3<x<-1, we have 4x is the solution can you solve it now?

Answer 8

just plug in (-2) for x in the expression 4x, tell me what you get

Answer 9

Okay, thanks!

Answer 10

yup.

Answer 11

Ok, here it goes, since the number -2 is between -3 and -1, we need to use that rule, 4x, because f(x) is equal to 4x when x is between -3 and -1. Therefore, we simply do this: 4(-2), and get -8, so f(-2)=-8